^ This! In defense of this seller, you've started a GBU thread about, I would've avoided you too!
You: International buyer, zero feedback,
you made an offer lower than the seller's asking price in his sales thread, for a $300+ knife, Edit: & you posted FOUR times in his sales thread:
https://www.bladeforums.com/threads/liong-mah-kuf-kizer-gunhammer.1526776/#post-17551087.
I would suggest that if you have $300 to spend on a knife, that you invest in and support this forum by buying a $10 basic membership.
Communication is key. You're inability to do so privately, along with the fact that you're using a seller's sales thread, to do make offer's and all of your other communication for that matter...
Is very poor etiquette in my opinion.
Seller's have the right to sell to whomever they want. I suggest that you move on, and find another knife you like.